Thanks for your replies guys.
Hmmm... I tried to get ri of most of the gears, especially the large gear. Now it's so slow that the helve hammer can' finish an ingot before it cools down too much. Well, I guess I have to wait for next summer to add more sails //media.invisioncic.com/r268468/emoticons/sad.png Spend all my fiber to get those 4 sets.
But when I have 5 sets - that seems to be the maximum for one mill? - then I will also have not enough power to speed it up, right? So how do you guys connect everything you need to only one mill?